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From "Khurram Faraaz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2637) Schema change reported incorrectly although both the input columns are of same datatype
Date Tue, 31 Mar 2015 20:29:52 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14389341#comment-14389341
] 

Khurram Faraaz commented on DRILL-2637:
---------------------------------------

My attempt to cast the two inputs to Union All resulted in CannotPlanException

{code}
0: jdbc:drill:> select count(c1) from (select cast(columns[0] as int) c1 from `testWindow.csv`)
union all (select cast(columns[0] as int) c2 from `testWindow.csv`);
Query failed: RelOptPlanner.CannotPlanException: Node [rel#58937:Subset#4.LOGICAL.ANY([]).[]]
could not be implemented; planner state:

Root: rel#58937:Subset#4.LOGICAL.ANY([]).[]
Original rel:
AbstractConverter(subset=[rel#58937:Subset#4.LOGICAL.ANY([]).[]], convention=[LOGICAL], DrillDistributionTraitDef=[ANY([])],
sort=[[]]): rowcount = 1.7976931348623157E308, cumulative cost = {inf}, id = 58938
  UnionRel(subset=[rel#58936:Subset#4.NONE.ANY([]).[]], all=[true]): rowcount = 1.7976931348623157E308,
cumulative cost = {1.7976931348623157E308 rows, 1.7976931348623157E308 cpu, 0.0 io, 0.0 network,
0.0 memory}, id = 58935
    AggregateRel(subset=[rel#58932:Subset#2.NONE.ANY([]).[]], group=[{}], EXPR$0=[COUNT($0)]):
rowcount = 1.7976931348623158E307, cumulative cost = {1.7976931348623158E307 rows, 0.0 cpu,
0.0 io, 0.0 network, 0.0 memory}, id = 58931
      ProjectRel(subset=[rel#58930:Subset#1.NONE.ANY([]).[]], c1=[CAST(ITEM($1, 0)):INTEGER]):
rowcount = 100.0, cumulative cost = {100.0 rows, 100.0 cpu, 0.0 io, 0.0 network, 0.0 memory},
id = 58929
        EnumerableTableAccessRel(subset=[rel#58928:Subset#0.ENUMERABLE.ANY([]).[]], table=[[dfs,
tmp, testWindow.csv]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io,
0.0 network, 0.0 memory}, id = 58912
    ProjectRel(subset=[rel#58934:Subset#3.NONE.ANY([]).[]], c2=[CAST(ITEM($1, 0)):INTEGER]):
rowcount = 100.0, cumulative cost = {100.0 rows, 100.0 cpu, 0.0 io, 0.0 network, 0.0 memory},
id = 58933
      EnumerableTableAccessRel(subset=[rel#58928:Subset#0.ENUMERABLE.ANY([]).[]], table=[[dfs,
tmp, testWindow.csv]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io,
0.0 network, 0.0 memory}, id = 58912

Sets:
Set#0, type: (DrillRecordRow[*, columns])
	rel#58928:Subset#0.ENUMERABLE.ANY([]).[], best=rel#58912, importance=0.6561
		rel#58912:EnumerableTableAccessRel.ENUMERABLE.ANY([]).[](table=[dfs, tmp, testWindow.csv]),
rowcount=100.0, cumulative cost={100.0 rows, 101.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
		rel#58952:AbstractConverter.ENUMERABLE.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],convention=ENUMERABLE,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.0, cumulative cost={inf}
	rel#58951:Subset#0.LOGICAL.ANY([]).[], best=rel#58959, importance=0.5904900000000001
		rel#58953:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=100.0, cumulative cost={inf}
		rel#58959:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp, testWindow.csv],groupscan=EasyGroupScan
[selectionRoot=/tmp/testWindow.csv, numFiles=1, columns=[`*`], files=[maprfs:/tmp/testWindow.csv]]),
rowcount=1.0, cumulative cost={1.0 rows, 10000.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
Set#1, type: RecordType(INTEGER c1)
	rel#58930:Subset#1.NONE.ANY([]).[], best=null, importance=0.7290000000000001
		rel#58929:ProjectRel.NONE.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],c1=CAST(ITEM($1,
0)):INTEGER), rowcount=100.0, cumulative cost={inf}
	rel#58948:Subset#1.LOGICAL.ANY([]).[], best=rel#58957, importance=0.36450000000000005
		rel#58949:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58930:Subset#1.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
		rel#58957:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58946:Subset#5.LOGICAL.ANY([]).[],c1=CAST(ITEM($0,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 5.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
		rel#58958:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],c1=CAST(ITEM($1,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 10004.0 cpu, 0.0 io, 0.0 network, 0.0
memory}
Set#2, type: RecordType(BIGINT EXPR$0)
	rel#58932:Subset#2.NONE.ANY([]).[], best=null, importance=0.81
		rel#58931:AggregateRel.NONE.ANY([]).[](child=rel#58930:Subset#1.NONE.ANY([]).[],group={},EXPR$0=COUNT($0)),
rowcount=1.7976931348623158E307, cumulative cost={inf}
	rel#58939:Subset#2.LOGICAL.ANY([]).[], best=rel#58950, importance=0.405
		rel#58940:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58932:Subset#2.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
		rel#58950:DrillAggregateRel.LOGICAL.ANY([]).[](child=rel#58948:Subset#1.LOGICAL.ANY([]).[],group={},EXPR$0=COUNT($0)),
rowcount=1.0, cumulative cost={3.0 rows, 6.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
Set#3, type: RecordType(INTEGER c2)
	rel#58934:Subset#3.NONE.ANY([]).[], best=null, importance=0.81
		rel#58933:ProjectRel.NONE.ANY([]).[](child=rel#58928:Subset#0.ENUMERABLE.ANY([]).[],c2=CAST(ITEM($1,
0)):INTEGER), rowcount=100.0, cumulative cost={inf}
	rel#58941:Subset#3.LOGICAL.ANY([]).[], best=rel#58947, importance=0.405
		rel#58942:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58934:Subset#3.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
		rel#58947:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58946:Subset#5.LOGICAL.ANY([]).[],c2=CAST(ITEM($0,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 5.0 cpu, 0.0 io, 0.0 network, 0.0 memory}
		rel#58954:DrillProjectRel.LOGICAL.ANY([]).[](child=rel#58951:Subset#0.LOGICAL.ANY([]).[],c2=CAST(ITEM($1,
0)):INTEGER), rowcount=1.0, cumulative cost={2.0 rows, 10004.0 cpu, 0.0 io, 0.0 network, 0.0
memory}
Set#4, type: RecordType(BIGINT EXPR$0)
	rel#58936:Subset#4.NONE.ANY([]).[], best=null, importance=0.9
		rel#58935:UnionRel.NONE.ANY([]).[](input#0=rel#58932:Subset#2.NONE.ANY([]).[],input#1=rel#58934:Subset#3.NONE.ANY([]).[],all=true),
rowcount=1.7976931348623157E308, cumulative cost={inf}
	rel#58937:Subset#4.LOGICAL.ANY([]).[], best=null, importance=1.0
		rel#58938:AbstractConverter.LOGICAL.ANY([]).[](child=rel#58936:Subset#4.NONE.ANY([]).[],convention=LOGICAL,DrillDistributionTraitDef=ANY([]),sort=[]),
rowcount=1.7976931348623157E308, cumulative cost={inf}
Set#5, type: RecordType(ANY columns)
	rel#58946:Subset#5.LOGICAL.ANY([]).[], best=rel#58944, importance=0.12728571428571428
		rel#58944:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp, testWindow.csv],groupscan=EasyGroupScan
[selectionRoot=/tmp/testWindow.csv, numFiles=1, columns=[`columns`[0]], files=[maprfs:/tmp/testWindow.csv]]),
rowcount=1.0, cumulative cost={1.0 rows, 1.0 cpu, 0.0 io, 0.0 network, 0.0 memory}

Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Stack trace from the drillbit.log

{code}
Set#5, type: RecordType(ANY columns)
        rel#58946:Subset#5.LOGICAL.ANY([]).[], best=rel#58944, importance=0.12728571428571428
                rel#58944:DrillScanRel.LOGICAL.ANY([]).[](table=[dfs, tmp, testWindow.csv],groupscan=EasyGroupScan
[selectionRoot=/tmp/testWindow.csv, numFiles=1, columns=[`columns`[0]], files=[maprfs:/tmp/testWindow.csv]]),
rowcount=1.0, cumulative cost={1.0 rows, 1.0 cpu, 0.0 io, 0.0 network, 0.0 memory}

        at org.eigenbase.relopt.volcano.RelSubset$CheapestPlanReplacer.visit(RelSubset.java:445)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.relopt.volcano.RelSubset.buildCheapestPlan(RelSubset.java:287) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.relopt.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:677)
~[optiq-core-0.9-drill-r20.jar:na]
        at net.hydromatic.optiq.tools.Programs$RuleSetProgram.run(Programs.java:165) ~[optiq-core-0.9-drill-r20.jar:na]
        at net.hydromatic.optiq.prepare.PlannerImpl.transform(PlannerImpl.java:275) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:206)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:138)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773) [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204) [drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        ... 3 common frames omitted
{code}

> Schema change reported incorrectly although both the input columns are of same datatype
> ---------------------------------------------------------------------------------------
>
>                 Key: DRILL-2637
>                 URL: https://issues.apache.org/jira/browse/DRILL-2637
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 0.9.0
>            Reporter: Khurram Faraaz
>
> Schema change is reported incorrectly, although the two columns hold data of same datatype,
and those two columns are input to Union All and an aggregate count is performed on the results
returned by Union All.
> Tests were run on 4 node cluster.
> {code}
> 0: jdbc:drill:> select c1 from (select columns[0] c1 from `testWindow.csv`) union
all (select columns[0] c2 from `testWindow.csv`);
> +------------+
> |     c1     |
> +------------+
> | 100        |
> | 10         |
> | 2          |
> | 50         |
> | 55         |
> | 67         |
> | 113        |
> | 119        |
> | 89         |
> | 57         |
> | 61         |
> | 100        |
> | 10         |
> | 2          |
> | 50         |
> | 55         |
> | 67         |
> | 113        |
> | 119        |
> | 89         |
> | 57         |
> | 61         |
> +------------+
> 22 rows selected (0.121 seconds)
> {code}
> {code}
> 0: jdbc:drill:> select count(c1) from (select columns[0] c1 from `testWindow.csv`)
union all (select columns[0] c2 from `testWindow.csv`);
> +------------+
> |   EXPR$0   |
> +------------+
> Query failed: Query stopped., Schema change detected in the left input of Union-All.
This is not currently supported [ 57dd6384-fb23-4ab0-aee9-fb7def390788 on centos-04.qa.lab:31010
]
> java.lang.RuntimeException: java.sql.SQLException: Failure while executing query.
> 	at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
> 	at sqlline.SqlLine$TableOutputFormat.print(SqlLine.java:2148)
> 	at sqlline.SqlLine.print(SqlLine.java:1809)
> 	at sqlline.SqlLine$Commands.execute(SqlLine.java:3766)
> 	at sqlline.SqlLine$Commands.sql(SqlLine.java:3663)
> 	at sqlline.SqlLine.dispatch(SqlLine.java:889)
> 	at sqlline.SqlLine.begin(SqlLine.java:763)
> 	at sqlline.SqlLine.start(SqlLine.java:498)
> 	at sqlline.SqlLine.main(SqlLine.java:460)
> {code}
> Stack trace from drillbit.log
> {code}
> 2015-03-31 20:10:07,825 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] ERROR o.a.drill.exec.work.foreman.Foreman
- Error 0b4d9b3a-d8af-4dc9-be47-46c4547a793a: RemoteRpcException: Failure while running fragment.,
Schema change detected in the left input of Union-All. This is not currently supported [ b9555eb8-c009-4e9c-b058-ffae3f015df7
on centos-04.qa.lab:31010 ]
> [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on centos-04.qa.lab:31010 ]
> org.apache.drill.exec.rpc.RemoteRpcException: Failure while running fragment., Schema
change detected in the left input of Union-All. This is not currently supported [ b9555eb8-c009-4e9c-b058-ffae3f015df7
on centos-04.qa.lab:31010 ]
> [ b9555eb8-c009-4e9c-b058-ffae3f015df7 on centos-04.qa.lab:31010 ]
>         at org.apache.drill.exec.work.foreman.QueryManager.statusUpdate(QueryManager.java:163)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.foreman.QueryManager$RootStatusReporter.statusChange(QueryManager.java:281)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.AbstractStatusReporter.fail(AbstractStatusReporter.java:114)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.AbstractStatusReporter.fail(AbstractStatusReporter.java:110)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.internalFail(FragmentExecutor.java:230)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:165)
[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
[drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
>         at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> 2015-03-31 20:10:07,825 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] WARN  o.a.d.e.w.fragment.FragmentExecutor
- Error while initializing or executing fragment
> java.lang.RuntimeException: Error closing fragment context.
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:224)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:166)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
[drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
>         at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> Caused by: org.apache.drill.exec.exception.SchemaChangeException: Schema change detected
in the left input of Union-All. This is not currently supported
>         at org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch$UnionAllInput.nextBatch(UnionAllRecordBatch.java:353)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch.innerNext(UnionAllRecordBatch.java:102)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:68)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:96)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:58)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:163)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         ... 4 common frames omitted
> 2015-03-31 20:10:07,826 [2ae500df-db85-2583-fa7f-b89beb7e5ac0:frag:0:0] ERROR o.a.drill.exec.ops.FragmentContext
- Fragment Context received failure -- Fragment: 0:0
> java.lang.RuntimeException: Error closing fragment context.
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:224)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:166)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
[drill-common-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
>         at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
> Caused by: org.apache.drill.exec.exception.SchemaChangeException: Schema change detected
in the left input of Union-All. This is not currently supported
>         at org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch$UnionAllInput.nextBatch(UnionAllRecordBatch.java:353)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.union.UnionAllRecordBatch.innerNext(UnionAllRecordBatch.java:102)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:68)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:96)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:58)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:163)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
>         ... 4 common frames omitted
> {code}
> Details of version
> {code}
> | 9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580: Exit early from HashJoinBatch
if build side is empty | 26.03.2015 @ 16:13:53 EDT | Unknown     | 26.03.2015 @ 16:53:21 EDT
|
> {code}



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